Year	current US$
1970	75300000.03613533
1971	83710001.46120787
1972	103560000.52392484
1973	129040001.956746
1974	152109997.96725786
1975	177250001.3727693
1976	162009999.005124
1977	182550001.1071568
1978	225470007.46801472
1979	294649998.96846664
1980	303100005.1293519
1981	235199999.3231152
1982	200159996.83365244
1983	166689999.21716756
1984	165120002.32003632
1985	190659998.93657872
1986	252120005.53496215
1987	255930003.34687567
1988	258469994.81134164
1989	198209998.6672401
1990	291989999.0539998
1991	213479998.383671
1992	254999999.0891665
1993	206570000.25734302
1994	210170000.4935266
1995	179849999.1688877
1996	167600000.558421
1997	192370003.0278415
1998	257130003.19898129
1999	163059999.97444442
2000	193750000.47311187
2001	234489997.5694715
2002	337529995.9611149
2003	1001720004.4561182
2004	512629987.4987454
2005	558549994.336441
2006	792810005.5158145
2007	620390008.3713237
2008	604320003.6678468
2009	742360005.354509
2010	1209119988.0931528
2011	788210000.2188233
2012	754390003.7743155
2013	551560000.9337064
2014	521659998.653457
2015	435029996.4938311
2016	461089996.9004093
2017	461170004.1275476
2018	473139997.86973006
2019	433980003.57486266
2020	451140002.54683256
2021	529510000.96090066
2022	460629995.31440437